Film-frame apparatus



Oct. 29, 1929. c w 1,733,581

FILM FRAME APPARATUS Filed Oct. 30 1928 2 Sheets-Sheet 2 25 52 o 52 2 25 INVENTOR A TTORNL Y Patented Oct. 29, 1929 UNITED F tz:T0111 2, comm 0 SUMMIT NEW mB iL as i n n "TQIiE D i c A? can? A FIL -FRA E; rman-mus I My :invention relates to improvements in film frame apparatus used inconnection with What areknown in the printing artas print- 1 inggor shading films, for printing on drawe ing "surfaces of cardboard stone, metal or other material, and more particularly to 'im-* proved means tor securing a fine, precisional adjustment of the shading: film withirelation' to the work, always maintaining the film level so that iall pOI'l'JOIlS of the pattern can be 1 ppe and: vertically adjustable standards I for securing a synchronous and fine precisional adof the printingifilm' with relation tothe work and keeping the film levelon the a j u'stment work.

i vertically.

Another object isto prcjivide a film frame L apparatus whose parts are so constructed: thatany tendency toward bindand arranged ing or 'gagglng' or the standards supporting ed, the parts of the 'a ppara tus' being capable of smooth, synchronousmovement :so as, to

affect the desired "accurate leveling adjust ment of the shadingfilm and'tojprbyide any apparatus whose parts are" readilyabcessible' andeasily accurately manipulated. J

out hereinafter, 5

Referring now; tothe drawlngs 1:

drawing. 1

,ographic stonerr r frame apparatus having means including a pair of inclined tracksand slides Another objector the invention is to'pro-w vicle means fortmountingand freely moving 2 the slides and standards at an incline with relation to the work table;andrformounting. the standards, supporting :the crossbar, outside of the working surface of-the worktable-f or drawing board,*so as to provide a film: frame apparatus capable of a full range of 1 movement fromside to siderfore and aft and I the crossbar or, of the inclined slides, is-avoid-w shown, in Figure-L 7 L I Figure 3, is a side view showing the apparatusready for use upon a. drawing on a lith Figure 4, isa side elevationlot one of the supporting members, with its inclined track and slide and-adjustable standard.

Fi ure-2; 1912a sweetie the appar us Figure 5', is actront detail view of a supporting member showing the various clampigure 6, is a detail'side elevationof amodifie'd form of theinvention, and Y inFigure'Zfis a' rear viewof the form shown i in Figure 6. I e

-The film :frame apparatus of-my invention,

it will? be understood, vmay: be used when I e printing on draw ngsurfaces oncardboard,

metahstone or other material.

In Figures 1 and 2 of the drawings, the

inventionis shownwhen used with "a card board drawing; L The printing film 1, is shown in. place overthedrawing'2, on a w'orhtable or drawing board 3; 'vThetfilmis held by the usual frame clamp 4, whose jaws, operated by the lever and link connection 5, 6,1grasp the i film. The clamp'4,l is provided'with ears 7 which are-socketed to engage pintles:8 ofthe micromtric pintle holder devices 9.

The pintle' holder devices 9, are supported on a crossbarl0' means of their sleeves 11, and are clampedin place the'bar by means of thumb screws' l2. Forwardly projecting bea-mng blocks lil," carry the pintles, which'=- are suitably adjusted laterally by means of ad uSting screws 14, and longitudinally of which screws carry-the usual micrometric gage markings.

protuberated' that they" bear against the h t et bq e a g l bl l ts w n s eeves 11 of the pintle holder devices and my inventioniconsistsin the parts, improvements and'combinationsmore fullyqpointed 1 act as a backrestfor the frame clamp, when the pintles 8, so that the progress'of the work may be inspected." The ears, acting as back- I I stops, serve to prevent injury tothe' sensitive Figure: 1,,1s a plan VIEW of a film frame ap-v paratusinipositiont foruse with a cardboard I film-byholding the film from contact with any ofthe partsof the apparatus.

In accordance with my invention, means the table 'bymeans of adjusting screws 14*, i

are provided including a pair of inclined slides, for securing a fine, precisional adj ustment of the film to the drawing level.

As illustrated, a pair of supporting members 15, are provided. Inthe form of the invention shown in Figures 1 to 5,.the upper portion of each supporting member is provided with an inclined track at 16, each of which is adapted to carry a reciprocating slide 17'." Each slide 17, as shown, isprovioled Means are provided, in accordance with the,

invention, for securing. an adjustment of the printing film with relation to the reciprocating slides and the surface to be printed upon.

Suitably secured to the lower end of each slide 17 is an adjustable standard 22, in which standards the crossbar, which carries the pintle holders, film clamp, frame and so; film, is mounted.

It willbe seen, that by-loosening thumbscrews 19, the crossbar. may be moved soas toposition the printing 1 film as desired.

When the film is to 'be brought into registering relation with the drawing, to be worked, it is essential that its adjustment be effected with ease and witho'ut marring of' the drawing, such as might happen by blnding, sticking or jerking of any of the ad- 401'yjHStlI1g members,zor any sharp vertical drop of the members. 7 a

, hen rod 10, carrying the frameand film is moved after loosening thumbscrews 19,

the slides 17, carrying the standards 22, may

be moved smoothly and. synchronously it without binding, in their inclined tracks'of the supporting members, and the standards do not drop vertically but are firmly held in their adjusted position. This inclined move- 7 5o-ment of the slides moves the standards so as to avoid any sharp vertical drop and brings about a fine, precisional adjustment of the printing film to the drawing level.

The inclined slides are of a length sutli-v 1; cient to permit their movement to bring about the desired positioning of the shading film' g without interference by the supporting mem- Means are provided, in accordance with on drawings of different heights.

the invention, for securing a separate vertical adjustment of the shading ;fi1m., e

As illustrated, each standard 22,'comprises a tubular base 23, suitably secured to its respective slide 17, and -'a vertically adjustable shank 24. Each shank passes through its base 23, the opening in the latter beingof greater diameter than the. shank so that the shank is freely rotatable in its base. Each shank, at its bottom, may be provided with a cap 25, or suitably flattened to hold it in its base, and each shank, at its top, has an enlarged portion 26, each having an aperture adapted to receive one end of crossbar 10. Set

crossbar and shading film above the work,

and then clamped in their adjusted position. The thumbscrews 19, for the slides, may

then be loosened, so. thatthe slides may move the standards atan incline to the drawing surface to secure the final precisional adjustmentof the film to the drawing level.

Or, as shown in Figure3, when working on screws 27, pass through the tops of the shanks I a drawing on stone of considerable height, I

vertically adjustable shank 29, of greater length may be substituted for the shanks2 l, shown inFigures 1 and 2.

' The shanks being freely adjustable and rotatable in their bases permits their adjustments to be made without any binding action,

and enables the shanks'to be turned about so that the crossbar may be easily inserted or withdrawn, when assembling or detaching the apparatus; or permits the shanks to be veered and. fixed in angular position to the board, when desired. 7 V 7 Means are provided, in accordance with the invention, for. mounting the supporting members, the inclined reciprocating slides and the adjustable standards, outside the working surface of the drawing board so that the slides may travel in their tracks and in standards may be moved vertically and at an Y incline to the work without interference by the drawing board or by the supporting members thus giving a full range of movement to the apparatus. 7

As shown, the ends of slides 17, to which the standards are secured, project beyond the supporting members so that the standards are supported outside the supporting members, and may be moved at an incline with relation to the work and may be adjusted vertically bers. In the form shown, each supporting member 15, is provided with an inwardly extending base portion 30, having upper and lower lips 31, 32, which form a groove for each supporting member, which is adaptedto slidingly engage a grooved guide or track 33.

provided along each side of the work tableiy Thumbscrews 34, one for each supporting extendlng therethrough.

nection 88, shown.

I the pintles,

m m r, p e t ought e ips:81,:a d engage he: gu des 3, 59 a t em yablysecur he suppor ing membe n p c The m vement of the supporting members along' the guidesamide any uncertain leveling of the devices on the table or drawing board.

In thQ HLIOdifiQdQfOIHI of the invention shown in Figures 6 and 7 each of the supporting members 15, is provided with an inclined lug 35, each having a track or bore 36 Mounted in the lugs and adapted to travel on the tracks of the lugs, are a pair of slides 37. Each slide 37, is suitable secured to its respective standard 22, as by means of the cast socket con- The combination of the standards, which may themselves be adjusted vertically, and the inclined tracks and slides for moving the standards at an incline to the work table allows the film to be positioned on the drawing rapidly and accurately with a minimum of movement of the adjusting members and without any gaging or binding or sharp vertical drops of the adjusting members.

The provision of means for clamping the supporting members to the table, for clamping the slides in their adjusted positions, for clamping the shanks of the standards in position, and for clamping the crossbar in the standards, enables the apparatus to resist any movements due to working pressures or other causes and will avoid shifting of the apparatus on the drawing.

In operation, the apparatus of my inven tion may be rapidly assembled and detached, and is capable of a full range of movement from side to side, fore and aft and of a fine, precisional vertical adjustment of the film with relation to the drawing. 7

The supporting members 15, are first placed on the guides of the drawingboard and the bar 10, carrying the film frame clamp and film, if a drawing on cardboard or metal is to be worked, is inserted between thepintle holders, which have been suitably adjusted on the crossbar. The precisional adjustment of the film to the drawing level may then be brought about by loosening thumbscrews 19. Bar 10 may be then moved, by means of the inclined slides and the standards smoothly and synchronously, to the desired position, and the slides and standards are then held in their proper positlon by tightening the thumbscrews 19. If a drawing on a lithographic stone, for example, is to be worked, the shanks of standards 22, carrying the bar, are first adjusted vertically to secure a preliminary positioning of the film and then clamped in place, before the film clamp, frame and film are inserted between and before the movement of the slides and adjustment of standards described above, has taken place.

After the proper accurate ad ustment of the film to the drawing; level has been effected, the inked design or texture of the printing film is transferredlto the drawing where desired by the proper printing or pressing instrument.

. Having thus described the invention, .it will be understood that changes may be made in rying out; the in ent Qn-without. depart ing from theprinciple thereof.

What I'clai n is: i a l- A film frame appa t s fo pr i g lmsincl di g in combina ion w ha worka l daptedt suppor l he wor a pair of support ngmember sec red to he l a pair of inclined reciprocable. slides carried y t e supporting m e s, a pa r o s nd ard rseeu ed o'sa d lid l d p dm be moved thereby at an incline to, thenvork table and acrossbe ca ried. by s d st dar s, s id ras bnr ad pte to suppm' an n ng film fr me:

; 2. A filmf frame apparatusforprinting films including. in combination with. a work: table adapted to support the work, apair of pp r ng me er Secu ed to and e ten ing. from, the table, apair of inclinedreciprocable slides carried by the supportingmenr he a pa stenr m' s.vsecuml o a slides, said standards being vertically, adjust a e, an ro sbarl arr ed y sa l tan k ar ss cr sbar a apted tQ s p a p nting ml ra e ms, in u ing in com i ati n i a w ktab ed n e l s ppor he ork pa of supporting members secured to, andv extending from the table, a pair of verticallyadi f ahle t n ards, m nsear ie by s siph nns me b rs f r nglt st n ards atan incline {tothe worktable, and, a crossbar carried bysaid standards andadaptd s 1 Pl 9 err n in film f a 4- efi m fram a p t o Pr n ng l s clud i emh eation w a w k. t a r o supp rt ng me b a pa r ,.3.,jA film frame apparatus for printing i f ie e r' iprd abl l des r d' y; s

supporting[member-s, a pair of standards mounted outside of said supporting members andoutside of the work table and secured tjo sa id slides, the standards being adapted to be moved by said slides at an incline to tllBJYQIlI table, and a crossbar carried by said, standards and, adapted to support a printing film frame, v

5. film frame, apparat us for printing films including in, combination, a pair of supporting members, said supporting mem-c bersdieingeach provided with an inclined track, pair of reciprocable slides carried by said supportin members and adapt d to travelpnsiaid trac (s, a pair of standards secured to said slidos'iand a crossbarcarried by saidfst andardsand adapted to support a pi'inting film frame: j

A me app at s. f r Print ng.

porting members, said supporting members being each provided with an inclined track, a

pair of reciprocable slides carried by said supporting members and adapted to travel on said tracks, a pair of vertically adjustable standards secured to said slides, and a crossbar carried by said standards, and adapted to support a printing film frame.

7. A film frame apparatus for printing films including in combination, a pair of supporting members, a pair of inclined, reciprocable slides carried by said supporting members, a pair of adjustable standards secured to said slides, said slides being each provided with a longitudinally elongated slot, and means carried by the supporting members passing through the slots in the slides for securing the slides to the supporting members.

8. A film frame apparatus for printing films including in combination, a pair of supporting members, a pair of inclined reciprocable slides carried by said supporting members, a pair of adjustable standards secured to said slides, and means for removably clamping said slides in any of their moved positions. I

9. A film frame apparatus including in combination a pair of supporting members, a pair of reciprocable slides carried by said supporting members, a pair of standards secured to said slides, a crossbar adapted to support a'printing film frame, carried by said standards, said standards being vertically adjustable, and means for clamping the standards position; 1 v

10. A film frame apparatus including in in their vertically adjusted FLETCHER COWAN;

combination, a pair of supporting members,

a pair of reciprocable slides carried by said supporting members, a pair of standards se-. curedto said slides, a crossbar adapted to support a printing film frame, carried by said standards, said standards beingvertically adjustable, means for clamping the standards in their'vertically adjusted positions and means for clamping the crossbar in the standards.

11. A film frame apparatus for printing films including in combination with a worktable adapted to support the work, and provided with a guide at each side thereof, a pair of supporting members, each supporting member being provided with an inwardly extending, grooved base portion adapted to slidingly engage said guides, a pair of inclined reciprocable slides carried by said sup- 7 porting members, a pair of vertically adjustable standards secured to said slides and a crossbar carried by said standards.

12. A film frame apparatus for printing films including in combination, a pair of supporting members, a pair of inclined, reciprocable slides carried by said supporting members, a pair of adjustable and rotatable 

